Rubber Duck

Rubber Duck is an advanced Model Context Protocol (MCP) server that enables users to query, compare, and manage multiple large language models (LLMs) and local coding agents using a unified bridge. Designed for developers, researchers, and teams needing robust multi-LLM workflows, it supports OpenAI-compatible HTTP providers and CLI coding agents, offers interactive debate, voting, and comparison UIs, enforces security guardrails, and provides real-time health monitoring and analytics.